RecurringRule

How many times the order should recur in the given period.
The 1 in "1 time every 2 months"

The period amount.
The 2 in "1 time every 2 months"

The period type
The months in "1 time every 2 months"

The start date of the recurring period

The end date of the recurring period (optional).
If not specified, the order will continue to recur at the specified interval until the recurring attribute is removed or or is cancelled.

Preferred time (optional). Time should be specified in a 24-hr format.
Example: for 2pm the value should be 14:00
If no time is specified, the order will be scheduled at 12am (00:00) of the scheduled date.

If only a subset of the tests in the original order should be added to the recurring orders, this will contain the list of Test IDs for those tests. If empty, all tests in the order are added to any recurring order created.

The preferred days for scheduling the recurring orders.
Value is a string of digits each representing a day of the week with Sunday = 0 and Saturday = 6
Example: If the preferred days are Monday(1), Wednesday(3), and Friday(5), the PrefDays string would be 135